Rolodex Alphabetized Index Tabs for Open Rotary Business Card Files, 24-Pack, Black (1819544) A-Z index tabs separate and organize information alphabetically. Black divider tabs have letters printed on both sides for easy reference. For use with any 2 5/8-Inch x 4-Inch Rolodex tray or rotary card file. High quality index card stock paper is durable and long lasting. 0.75 inches long by 4.75 inches wide by 6 inches high.